package visitor;

class Car  {
    CarElement[] elements;
    public CarElement[] getElements() {
        return elements.clone(); // Return a copy of the array of references.
    }
    public Car() {
        this.elements = new CarElement[]
          { new Wheel("front left"), new Wheel("front right"),
            new Wheel("back left") , new Wheel("back right"),
            new Body(), new Engine() };
    }
}